map is:exact -package:aeson -package:case-insensitive -package:base-compat-batteries -package:basement -package:containers -package:Cabal-syntax -package:foldl -package:integration -package:imports -package:invertible -package:base-compat -package:base -package:dense-linear-algebra package:charset

map :: (Char -> Char) -> CharSet -> CharSet
charset Data.CharSet